Circuit protection device having thermally coupled MOV overvoltage element and PPTC overcurrent element

In a composite electrical circuit protection device (10), thermal coupling between a planar PPTC element (12) and a planar MOV element (14) is controlled by insertion of a thermal mass material (13) for regulating heat transfer from the MOV element to the PPTC element, such that a PPTC resistor hot...

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Bibliographic Details
Main Authors MOORE ROBERT P, GOLUBOVIC BORIS, BECKER PAUL N
Format Patent
LanguageChinese
English
Published 13.06.2012
Subjects
BASIC ELECTRIC ELEMENTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
RESISTORS
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Summary:In a composite electrical circuit protection device (10), thermal coupling between a planar PPTC element (12) and a planar MOV element (14) is controlled by insertion of a thermal mass material (13) for regulating heat transfer from the MOV element to the PPTC element, such that a PPTC resistor hot zone forms consistently away from the planar major foil electrode confronting the MOV thereby regulating heat transfer from the MOV to the PPTC resistor.
Bibliography:Application Number: CN2006827670